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Finding the Fourth Proportional to 1,068.92, 1,475.04 and 603.08

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Solution

The fourth proportional to 1,068.92, 1,475.04 and 603.08 is: 832.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068.92 : 1,475.04 = 603.08 : x
  2. Step 2: Convert to fraction form
    1,068.92/1,475.04 = 603.08/x
  3. Step 3: Cross multiply
    1,068.92x = 1,475.04 × 603.08
  4. Step 4: Simplify right side
    1,068.92x = 889,567.12
  5. Step 5: Solve for x
    x = 889,567.12/1,068.92
  6. Step 6: Final answer
    x = 832.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.